Apparatus for sequentially displaying data

ABSTRACT

Apparatus for sequentially displaying data, said data either being programmed or unprogrammed for display. The apparatus comprises a rotatably mounted member, means for rotating said rotatably mounted member, a plurality of data card mounting means disposed about the periphery of the rotatable member and mounted for rotation therewith, and for pivotal movement relative to said rotatable member, each of said card mounting means including a clip means for removably mounting a card, and a tripping arm, each tripping arm of each card mounting means being offset longitudinally apart relative to the tripping arm of an adjacent card mounting means, orientation means for supporting said card mounting means in a predetermined attitude relative to said rotatably mounted member for a predetermined angular position of the card during rotation of said rotatably mounted member, and an actuating means stationarily mounted with respect to said rotatably mounted member and disposed to engage sequentially each of said tripping arms during each revolution of said rotatably mounted member whereby each card will be pivoted by a predetermined amount about its associated support when its associated tripping arm engages and is actuated by said actuating means.

14 1 July24,1973

United States Patent 1191 Ladine [57] ABSTRACT Apparatus for sequentially displaying data, said data APPARATUS FOR SEQUENTIALLY DISPLAYING DATA [76] inventor: Lyal E. Ladine, 830 Orman Dr., either being Programmed or Programmed for B d l 30303 play. The apparatus comprises a rotatably mounted member, means for rotating said rotatably mounted [22] plied: 1971 member, a plurality of data card mounting means dis- [21] A N 193,342 posed about the periphery of the rotatable member and mounted for rotation therewith, and for pivotal movement relative to said rotatable member, each of said card mounting means including a clip means for remov- (will/02 ably mounting a card, and a tripping arm, each tripping 40,68 arm of each card mounting means being offset longitu- [52] 11.8. CL... [51] Int. [58] Field of Search.........................

dinally apart relative to the tripping arm of an adjacent card mounting means, orientation means for support- [56] References Cited UNITED STATES PATENTS ing said card mounting means in a predetermined attitude relative to said rotatably mounted member for a 763 5/1916 40/35 p d t rmin d angular p siti n f the card u g ta- 7/1966 Dunajew 40/68 X tion of said rotatably mounted member, and an actuat- 463 9/1932 Houck 40/35 ing means stationarily mounted with respect to said ro- 578 7/1956 40/35 X tatably mounted member and disposed to engage se- 5/l958 cleemp'Moner' 40/73'4 x quentially each of said tripping arms during each revo- 054 5/1961 Twyford, Jr, 40/73.4 X lution of said rotatably mounted member whereby each card will be pivoted by a predetermined amount about its associated support when its associated tripping arm engages and is actuated by said actuating means.

Primary ExaminerRobert W. Michell Assistant Examiner-J. H. Wolff AztorneyDuane Burton 7 Claims, 5 Drawing Figures APPARATUS FOR SEQUENTIALLY DISPLAYING DATA BACKGROUND OF THE INVENTION Heretofore, various devices have been proposed or used for sequentially displaying data and information. However each of these devices has suffered one or more disadvantages. For example, some of the devices have been rather bulky in overall size thereby rendering same more cumbersome to use; other devices have involved a great deal of complexity thereby resulting in an increased cost of manufacture thereof. Other devices did not permit the ready removal or exchange of rigid sheets upon which the information or data is displayed, and other devices displayed the data in such a limited field of view as to make same difficult to read or use. It has been found, however, that a device constructed in accordance with the subject invention overcomes the disadvantages of the prior art devices.

SUMMARY OF THE INVENTION This invention relates to a means for sequentially displaying data and information, either programmed or unprogrammed. Said means comprises a rotatably mounted member, means for rotating said rotatably mounted member, a plurality of means disposed about the periphery of said member for rotation therewith, each of said means also being mounted for pivotal movement relative to said member, each of said means including clip means for removably mounting a rigid sheet of material on said pivotally mounted means and a tripping arm, each tripping arm of each pivotally mounted means being spaced apart from the tripping arm of an adjacent pivotally mounted means, orientation means for supporting said pivotally mounted means in a predetermined attitude relative to said rotatably mounted member for a predetermined angular position of said pivotally mounted means during rotation of said rotatably mounted member, and an actuating means stationarily mounted with respect to said rotatably mounted member and disposed to engage sequentially each of said tripping arms during each revolution of said rotatably mounted member whereby each pivotally mounted means will be pivoted by a predetermined amount about its associated support when its associated tripping arm engages and is actuated by said actuating means.

Accordingly, one of the principal objects of this invention is to provide an improved means for sequentially displaying data and information, particularly a means which is inexpensive to manufacture and relatively simple in construction and operation.

Another object of this invention is to provide a means as aforedescribed including a plurality of rigid sheets of material, each sheet of material being mounted on a corresponding one of said pivotally mounted means by said clip means.

Another object of this invention is to provide a means as aforedescribed in which each pivotally mounted means includes a hollow tube.

Another object of this invention is to provide a means as aforedescribed in which the tripping arm and clip means of each pivotally mounted means are disposed generally diametrically one to the other.

Another object of this invention is to provide a means as aforedescribed in which the orientation means includes an arcuate surface portion and an L-shaped member, a first part of said L-shaped member being attached to said pivotally mounted means and a second part of said L-shaped member being disposed to contact said arcuate surface portion for a predetermined portion of each revolution of said rotatably mounted member.

Another object of this invention is to provide a means in which the tripping arm of each pivotally mounted means extends radially inwardly by an amount exceeding the distance separating opposed surface portions of adjacent pivotally mounted means whereby the tripping arm of one pivotally mounted means will be arrested by the successive adjacent pivotally mounted means following pivotal movement of said one pivotally mounted means.

Another object of this invention is to provide a means as aforedescribed in which the rigid sheets of each pivotally mounted means, following pivotal movement of said pivotally mounted means, forms an included angle with the rigid sheet of the successive pivotally mounted means of at least approximately or more.

Another object of this invention is to provide a means as aforedescribed in which the first part of each L- shaped member forms an included angle with a plane in which. is disposed the rigid sheet of the pivotally mounted means associated with said L-shaped member equal to approximately 45 or less.

Another object of this invention is to provide a means as aforedescribed including a compact housing having a first compartment in which is disposed said rotatably mounted member and a second compartment in which is disposed said means for rotating said rotatably mounted member.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the invention will become apparent from the following description and claims, when read in conjunction with the accompanying drawings wherein:

FIG. 1 is a perspective view of an apparatus constructed in accordance with this invention, the apparatus being mounted in its carrying case;

FIG. 2 is a perspective view, partially cut away, of an apparatus constructed in accordance with this invention;

FIG. 3 is a perspective view, partially cut away, showing the rotatably mounted member used in the means of this invention with various parts being omitted for the sake of clarity;

FIG. 4 is a perspective view of a pivotally mounted means used in the invention; and

FIG. 5 is an elevational view, in schematic and partial cross-section, showing a portion of the apparatus constructed in accordance with this invention.

BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENT In the drawings is shown an apparatus 12 for sequentially displaying data, information and the like. The apparatus 12 is mounted within a housing or carrying case 14. The apparatus 12 comprises a rotatably mounted member 16, means 18 for rotating said rotatably mounted member 16, a plurality of elongated supports 20 (see FIG. 4), disposed about the periphery of said member 16 and mounted for rotation with said member 16, a plurality of data card mounting means 22, each of said card mounting means 22 being mounted upon a corresponding one of said elongated supports 20 for pivotal movement relative thereto, orientation means for supporting said card mounting means 22 in a predetermined attitude relative to said rotatably mounted member 16 for a predetermined angular position of said pivotally mounted means 22 during rotation of said rotatably mounted member 16, and an actuating means 24 stationarily mounted with respect to said rotatably mounted member 16.

The rotatably mounted member 16 comprises a pair of disc members 26 and 28, see FIG. 3, held in spacedapart relation by the supports 20 and mounted upon an axle 30 for rotation therewith. As shown in the drawings, the plurality of supports 20 include three supports 32 formed slightly longer than any of the remaining supports 20 and are threaded on each end thereof. One end of each of the supports 32 is threaded within a threaded aperture (not shown) formed on the inner face 34 of the disc 26. A nut 36 is threaded upon the other end of each support 32 thereby securing the angular disc 28 in spaced-apart relation with respect to the circular disc 26.

Each of the card mounting means 22 includes a clip means 38 and a tripping arm 40. The clip means 38 and the tripping arm 40 of each card mounting means 22 are preferably disposed generally diametrically one to the other. As shown in the drawings, the clip means 38 is disposed generally radially outwardly of the means 22 when said means 22 is mounted upon its associated support 20 while the tripping arm 40 is disposed generally radially inwardly of said means 22 when said means 22 is mounted upon its associated support as aforesaid. Each tripping arm 40 of each card mounting means 22 is spaced longitudinally apart relative to the tripping arm of the next successive adjacent card mounting means thereby insuring against malfunctioning of the means 12 of this invention since the tripping arm 40 of one of the card mounting means 22 will not engage or otherwise come into contact with the tripping arm of the next successive card mounting means 22. The spacing of the tripping arms 40 longitudinally apart as aforesaid insures that each means 22 will be free to pivot about its associated support 20 without interference of the tripping arm of the next successive means 22. As shown in FIG. 4, the means 22 includes a hollow tube 42. Thus, it will be understood that a portion of each of the supports 20 or 32 will be disposed within a corresponding one of said tubes 42 of each means 32.

The orientation means for supporting said card mounting means 22 in a predetermined attitude relative to the said rotatably mounted member 16 for a predetermined angular position of said card mounting means 22 during rotation of said rotatably mounted member l6 includes an arcuate surface portion 34 (comprising the periphery of disc 26) and an L-shaped member 46 which is formed or attached to each of the means 22. A first part of each L-shaped member 46 is attached to the tube 46 of means 22 and a second part 50 is disposed to contact the arcuate surface portion 44 at least during the 90 degrees of angular travel of each means 22 as same moves in an upward direction during rotation of said rotatably mounted member 16. In other words, beginning with the means 22 when same is disposed in the uppermost position as shown in FIGS. 2 and 4, during the first approximate 270 of counterclockwise rotation of said rotatably mounted member 16, the second part 50 of the L-shaped member 46 will either not be in contact with the periphery of disc 26 or only slightly in contact therewith, the latter occurring toward the end of the 270 angular movement. However, during the next 90 of angular movement, the second part 50 of the L-shaped member 46 will come into and remain in contact with the arcuate surface 44 of the disc 26 thereby supporting and maintaining its associated means 22 in a predetermined attitude, i.e., extending radially outwardly of member 16. This attitude will be maintained until the tripping arm 40 of said means 22 is displaced by coming into contact with the actuating means 24.

As shown in FIG. 2, the means 12 includes a plurality of rigid sheets or data display cards 52 of material each of which is removably mounted upon a corresponding card mounting means 22 by the clip means 38 thereof. Understandably, the information and data to be displayed by means 12 will be imprinted upon the cards 52. Removably mounting said cards on said means 22 by clip means 38 permits changing thereof quickly and easily.

Referring now to FIG. 5, as previously indicated, the second part 50 of the L-shaped member 46 holds its associated means 22 in a manner whereby the rigid sheet 52 of material mounted with the clip means 38 of said means 22 is disposed radially outwardly of the member 16. However, after one of the means 22 and its associated rigid sheet 52 of material has been caused to pivot (in a counterclockwise direction as viewed in FIG. 5) by the tripping arm 40 of said means 22 being actuated by the actuating arm 24, it will be noted that the rigid sheet 52 of material of said means forms an included angle 0 with the next successive appearing sheet 52 of material of the next means 22 of at least approximately or more and preferably approximately or more depending upon the number of supports 20 mounted upon the means 16. Thus, as a result of this arrangement, it will be readily understood that the information and data imprinted or displayed upon the next successive rigid sheet 52 of material may be viewed through a relatively large angle of view.

Referring also to FIG. 5, a preferred mounting of the L-shaped member 46 to the tube 42 is shown whereby the first part 48 of said L-shaped member 46 lies in a plane which forms an included angle d) with the rigid sheet 52' of said means 22 equal to approximately 45 or less.

In order to insure against the clip means or the rigid sheet 52 of material of one of the means 22 interfering with the clip means or rigid sheet of material of the next successive means (taken in a rotational sense), it has been found that the length of the tripping arm 40 must extend radially of the means 22 by an amount exceeding the distance D (see FIG. 5) separating the opposed surface portions of said adjacent means 22 whereby the tripping arm of the first means 22 will be arrested by the tube 42 of the next successive adjacent means 22 following pivotal movement of said first means 22. It will be understood that the large number of supports 20 are preferably mounted upon each means 16. The same applies with respect to the use of the means 22. However, it will be readily appreciated that notwithstanding the use of a large number of elongated supports 20, under some applications pivotally mounted means 22 may be mounted upon every alternate support 20 rather than upon each of the supports 20. Under these circumstances, it will be readily appreciated that the length of the tripping arm 40 of each means 22 must be formed slightly in excess of the distance D as specified above since the free end of the tripping arm 40 of one of the means 22 must engage the next successive adjacent support if the interference referred to above is to be avoided. The foregoing would not apply where a trunnion type of support is used, i.e., a pair of stub supports (not shown), in lieu of an elongated support 20. More specifically, means 22 could be formed with a reduced diameter portion on each end thereof and each reduced diameter portion would be disposed within a corresponding recess formed on the inner face of the discs 26 and 28.

Operation of the means 12 shown in the drawings is now briefly described. Following the mounting of the means 16 for rotation, i.e., means 16 is mounted for rotation relative to a rectangular shaped support member 55 which is securely supported within one of the compartments of case 14, and connecting same to a means 18 for driving or rotating said means 16, said means 12 is now ready for the insertion of rigid sheets of material containing preselected information and data. As previously indicated, the preselected information and data may be either in a programmed sequence or an unprogrammed sequence. Illustrative of the former sequence is the display of ukelele or guitar chords either for training or playing purposes. Illustrative of the latter is the use of mathematical problems such as multiplication of numbers. Next, the means 18 for rotation of said member 16 is turned on through the actuation of the switch 54. Thereafter, the means 12 is ready for use on a continuous, uninterrupted basis for the information and data then being displayed therein. Although it is contemplated that a means 18 including an electric motor will be used for continuous rotation of the member 16, it will be understood that the means 18 utilizing a stepping motor or other suitable motor may be likewise used. When the means 12 is no longer being used, said means 12 may be quickly and easily secured against any possible damage thereto by installation of the cover 56 of the carrying case 14 and closing of the lid 58. The foregoing is facilitated by the use ofa carrying case 14 having a first compartment 60 in which is mounted said member 16 and a second compartment 62 in which is mounted said means 18 for rotating said member 16.

As shown in FIG. 2, a pulley belt 64 is used to interconnect the axle 30 upon which is mounted the member 16 and the shaft (not shown) of the motor included within the means 18. Additionally, the motor of the means 18 includes means 66 for adjusting the tautness of the pulley belt 64. In this connection, it will be noted that the means 18 is constructed for pivotal movement about a pivot point 68.

In view ofthe foregoing, it will be readily appreciated that a novel means for sequentially displaying data, information and the like has been disclosed and described. The means of this invention is simple in construction and compact in size. The cost of manufacture thereof is less than that of many prior art devices. It permits the removal or exchange of the rigid sheets upon which the information is displayed in a quick and easy manner, and may be used in a large number of applications such as in tranining, testing and the like. The means 12 is constructed to hold a relatively large number of rigid sheets of material, at least approximately 32, while atthe same time providing a large viewing angle of each card in sequence as same passes by a predetermined point in the rotation cycle. The time of viewing each individual rigid sheet of material is increased by the use of means which rapidly pivot one rigid sheet of material out of the viewing angle through which the next rigid sheet of material is viewed.

It is to be understood that this invention is not limited to the exact embodiment of the means described and shown which is merely by way of illustration and not limitation, as other various forms and modifications will be apparent to those skilled in the art. For example, a relatively large number of combinations of means 18 and member 16 may be utilized which will enable the means 12 of this invention to be utilized in the manner contemplated although the overall configuration in packaging of the means 12 may be varied in a number of ways. Likewise, the second part 50 of the L-shaped member 46 may come into contact with a stationary cam surface in lieu of the periphery 44 of the disc 26. Also, the means 22 need not be equiangularly spaced about the periphery of the discs since a varying timing sequence must be obtained for constant speed of rotation of the member 16, by varying the angularmounting of the various means 22. It will be understood that the supports 32 preferably have a shoulder formed adjacent the end thereof upon which the nut 36 is threadedly mounted, said shoulder engaging the inner face of disc 28 thereby controlling the longitudinal separation of one disc from the other.

I claim:

1. Apparatus for sequentially displaying data cards comprising:

a. a rotatably mounted member;

b. means for rotating said rotatably mounted member;

c. a plurality of supports disposed about the periphery of said member and mounted for rotation therewith;

d. a plurality of card mounting means, each of said card mounting means being mounted upon a corresponding one of said supports for pivotal movement relative thereto, each of said card mounting means including 1. a hollow tube pivotally mounted upon one of said supports,

2. clip means on each card mounting means for removably mounting a data card on the card mounting means,

3. a tripping arm fixedly mounted on each card mounting means, each tripping arm of each card mounting means being offset longitudinally of its tube from the tripping arm of an adjacent card mounting means, each tripping arm extending radially inwardly of said rotatably mounted member by an amount exceeding the distance between adjacent card mounting means whereby the tripping arm of one card mounting means will be arrested by the adjacent card mounting means to limit pivotal movement of said one card mounting means in one direction; and

4. the tripping arm and clip means of each card mounting means being disposed generally diametrically opposed one to the other relative to the pivot axis of the card mounting means;

e. orientation means for supporting said card mounting means in first and second predetermined pivotal attitudes relative to its support during respective first and second portions of each revolution of said rotatably-mounted member, said orientation means including 1. an arcuate surface portion, and

2. an L-shaped member mounted upon each of said card mounting means, and projecting from its card mounting means to contact said arcuate surface portion for said first portion of each revolution of said rotatably-mounted member; and

f. an actuating means stationarily mounted with respect to said rotatably-mounted member and disposed to engage sequentially each of said tripping arms during each revolution of said rotatablymounted member whereby each card mounting means will be pivoted to said second pivotal attitude relative to its associated support when its associated tripping arm engages said actuating means.

2. Apparatus for sequentially displaying data as described in claim 1 including a plurality of data cards, each card being mounted within the clip means of a corresponding one of said card mounting means.

3. Apparatus for sequentially displaying data as described in claim 2 in which the card, following pivotal movement of its card mounting means, forms an included angle with the card of the adjacent card mounting means of at least approximately 75 or more.

4. in an apparatus for sequentially displaying data cards having a frame, a rotatable member mounted upon said frame for rotation about a fixed horizontal axis, and means for driving said member in rotation about said fixed axis; the improvement comprising:

a plurality of support members mounted upon said rotatable member at symmetrically spaced locations about said axis,

a plurality of tubes, each of said tubes being mounted upon one of said support members for pivotal movement about a pivot axis parallel to said fixed axis,

data card receiving clip means on each of said tubes for supporting a data card in radially projecting relationship to the pivotal axis of the tube,

means defining an orientation surface on said rotatable member,

an L-shaped arm mounted on each of said tubes and engageable with said orientation surface to establish a first pivotal position of the tube relative to its support,

a tripping arm fixedly mounted on each tube and projecting radially inwardly therefrom by a distance exceeding the distance between adjacent tubes whereby the tripping arm on one of said tubes is engageable with an adjacent tube to establish a second pivotal position of said one of said tubes relative to its support,

said clip means, L-shaped arms and tripping arms being angularly positioned about the pivotal axes of the respective tubes upon which they are mounted to cause a card mounted in a clip means to gravitationally urge its tube to said first pivotal position as that tube is carried upwardly about said horizontal axis by rotation of said rotatable member,

and actuating means on said frame engageable with said tripping arms for swinging each tube to said second pivotal position as said tube traverses the upper portion ofits path about said horizontal axis.

5. The invention defined in claim 4 wherein the tripping arms of adjacent tubes are offset from each other along the pivotal axes of the tubes.

6. The invention defined in claim 4 wherein said rotatable member comprises first and second annular members concentric with said horizontal axis, said support members extending axially between said annular members to support one of said annular members in axially spaced concentric relationship with the other,

said actuating member being mounted upon said frame and projecting axially through said one of said annular members.

7. The invention as defined in claim 4 wherein said first and second pivotal positions are angularly spaced approximately from each other. 

1. Apparatus for sequentially displaying data cards comprising: a. a rotatably mounted member; b. means for rotating said rotatably mounted member; c. a plurality of supports disposed about the periphery of said member and mounted for rotation therewith; d. a plurality of card mounting means, each of said card mounting means being mounted upon a corresponding one of said supports for pivotal movement relative thereto, each of said card mounting means including
 1. a hollow tube pivotally mounted upon one of said supports,
 2. clip means on each card mounting means for removably mounting a data card on the card mounting means,
 3. a tripping arm fixedly mounted on each card mounting means, each tripping arm of each card mounting means being offset longitudinally of its tube from the tripping arm of an adjacent card mounting means, each tripping arm extending radially inwardly of said rotatably mounted member by an amount exceeding the distance between adjacent card mounting means whereby the tripping arm of one card mounting means will be arrested by the adjacent card mounting means to limit pivotal movement of said one card mounting means in one direction; and
 4. the tripping arm and clip means of each card mounting means being disposed generally diametrically opposed one to the other relative to the pivot axis of the card mounting means; e. orientation means for supporting said card mounting means in first and second predetermined pivotal attitudes relative to its support during respective first and second portions of each revolution of said rotatably-mounted member, said orientation means including
 1. an arcuate surface portion, and
 2. an L-shaped member mounted upon each of said card mounting means, and projecting from its card mounting means to contact said arcuate surface portion for said first portion of each revolution of said rotatably-mounted member; and f. an actuating means stationarily mounted with respect to said rotatably-mounted member and disposed to engage sequentially each of said tripping arms during each revolution of said rotatably-mounted member whereby each card mounting means will be pivoted to said second pivotal attitude relative to its associated support when its associated tripping arm engages said actuating means.
 2. clip means on each card mounting means for removably mounting a data card on the card mounting means,
 2. Apparatus for sequentially displaying data as described in claim 1 including a plurality of data cards, each card being mounted within the clip means of a corresponding one of said card mounting means.
 2. an L-shaped member mounted upon each of said card mounting means, and projecting from its card mounting means to contact said arcuate surface portion for said first portion of each revolution of said rotatably-mounted member; and f. an actuating means stationarily mounted with respect to said rotatably-mounted member and disposed to engage sequentially each of said tripping arms during each revolution of said rotatably-mounted member whereby each card mounting means will be pivoted to said second pivotal attitude relative to its associated support when its associated tripping arm engages said actuating means.
 3. Apparatus for sequentially displaying data as described in claim 2 in which the card, following pivotal movement of its card mounting means, forms an included angle with the card of the adjacent card mounting means of at least approximately 75* or more.
 3. a tripping arm fixedly mounted on each card mounting means, each tripping arm of each card mounting means being offset longitudinally of its tube from the tripping arm of an adjacent card mounting means, each tripping arm extending radially inwardly of said rotatably mounted member by an amount exceeding the distance between adjacent card mounting means whereby the tripping arm of one card mounting means will be arrested by the adjacent card mounting means to limit pivotal movement of said one card mounting means in one direction; and
 4. the tripping arm and clip means of each card mounting means being disposed generally diametrically opposed one to the other relative to the pivot axis of the card mounting means; e. orientation means for supporting said card mounting means in first and second predetermined pivotal attitudes relative to its support during respective first and second portions of each revolution of said rotatably-mounted member, said orientation means including
 4. In an apparatus for sequentially displaying data cards having a frame, a rotatable member mounted upon said frame for rotation about a fixed horizontal axis, and means for driving said member in rotation about said fixed axis; the improvement comprising: a plurality of support members mounted upon said rotatable member at symmetrically spaced locations about said axis, a plurality of tubes, each of said tubes being mounted upon one of said support members for pivotal movement about a pivot axis parallel to said fixed axis, data card receiving clip means on each of said tubes for supporting a data card in radially projecting relationship to the pivotal axis of the tube, means defining an orientation surface on said rotatable member, an L-shaped arm mounted on each of said tubes and engageable with said orientation surface to establish a firsT pivotal position of the tube relative to its support, a tripping arm fixedly mounted on each tube and projecting radially inwardly therefrom by a distance exceeding the distance between adjacent tubes whereby the tripping arm on one of said tubes is engageable with an adjacent tube to establish a second pivotal position of said one of said tubes relative to its support, said clip means, L-shaped arms and tripping arms being angularly positioned about the pivotal axes of the respective tubes upon which they are mounted to cause a card mounted in a clip means to gravitationally urge its tube to said first pivotal position as that tube is carried upwardly about said horizontal axis by rotation of said rotatable member, and actuating means on said frame engageable with said tripping arms for swinging each tube to said second pivotal position as said tube traverses the upper portion of its path about said horizontal axis.
 5. The invention defined in claim 4 wherein the tripping arms of adjacent tubes are offset from each other along the pivotal axes of the tubes.
 6. The invention defined in claim 4 wherein said rotatable member comprises first and second annular members concentric with said horizontal axis, said support members extending axially between said annular members to support one of said annular members in axially spaced concentric relationship with the other, said actuating member being mounted upon said frame and projecting axially through said one of said annular members.
 7. The invention as defined in claim 4 wherein said first and second pivotal positions are angularly spaced approximately 75* from each other. 